The European Physical Journal D

, 55:305

Large temporal window contrast measurement using optical parametric amplification and low-sensitivity detectors


  • R. C. Shah
    • Los Alamos National Laboratory
    • Los Alamos National Laboratory
  • T. Shimada
    • Los Alamos National Laboratory
  • B. M. Hegelich
    • Los Alamos National Laboratory
Topical issue: Fundamental Physics and Ultra-High Laser Fields

DOI: 10.1140/epjd/e2009-00152-3

Cite this article as:
Shah, R., Johnson, R., Shimada, T. et al. Eur. Phys. J. D (2009) 55: 305. doi:10.1140/epjd/e2009-00152-3


To address few-shot pulse contrast measurement, we present a correlator coupling the high gain of an optical parametric amplification scheme with large pulse tilt. This combination enables a low sensitivity charge coupled device (CCD) to observe features in the pulse intensity within a 50 ps single-shot window with inter-window dynamic range >107 and <0.5 mJ input energy. We also consider use of optical densities to boost the CCD dynamic range within a single temporal window.


42.60.Jf Beam characteristics: profile, intensity, and power; spatial pattern formation42.65.Yj Optical parametric oscillators and amplifiers52.38.Kd Laser-plasma acceleration of electrons and ions

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© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009